---
src/util/virbitmap.c | 107 +++++++++++++++++++++++++++++++++++++++------------
1 file changed, 83 insertions(+), 24 deletions(-)
diff --git a/src/util/virbitmap.c b/src/util/virbitmap.c
index c1b97d90fb..4229aa286e 100644
--- a/src/util/virbitmap.c
+++ b/src/util/virbitmap.c
@@ -136,7 +136,8 @@ virBitmapNewEmpty(void)
*
* Free @bitmap previously allocated by virBitmapNew.
*/
-void virBitmapFree(virBitmapPtr bitmap)
+void
+virBitmapFree(virBitmapPtr bitmap)
{
if (bitmap) {
VIR_FREE(bitmap->map);
@@ -145,7 +146,9 @@ void virBitmapFree(virBitmapPtr bitmap)
}
-int virBitmapCopy(virBitmapPtr dst, virBitmapPtr src)
+int
+virBitmapCopy(virBitmapPtr dst,
+ virBitmapPtr src)
{
if (dst->nbits != src->nbits) {
errno = EINVAL;
@@ -167,7 +170,9 @@ int virBitmapCopy(virBitmapPtr dst, virBitmapPtr src)
*
* Returns 0 on if bit is successfully set, -1 on error.
*/
-int virBitmapSetBit(virBitmapPtr bitmap, size_t b)
+int
+virBitmapSetBit(virBitmapPtr bitmap,
+ size_t b)
{
if (bitmap->nbits <= b)
return -1;
@@ -176,6 +181,7 @@ int virBitmapSetBit(virBitmapPtr bitmap, size_t b)
return 0;
}
+
/**
* virBitmapExpand:
* @map: Pointer to bitmap
@@ -186,7 +192,9 @@ int virBitmapSetBit(virBitmapPtr bitmap, size_t b)
*
* Returns 0 on success, -1 on error.
*/
-static int virBitmapExpand(virBitmapPtr map, size_t b)
+static int
+virBitmapExpand(virBitmapPtr map,
+ size_t b)
{
size_t new_len = VIR_DIV_UP(b + 1, VIR_BITMAP_BITS_PER_UNIT);
@@ -214,7 +222,9 @@ static int virBitmapExpand(virBitmapPtr map, size_t b)
*
* Returns 0 on if bit is successfully set, -1 on error.
*/
-int virBitmapSetBitExpand(virBitmapPtr bitmap, size_t b)
+int
+virBitmapSetBitExpand(virBitmapPtr bitmap,
+ size_t b)
{
if (bitmap->nbits <= b && virBitmapExpand(bitmap, b) < 0)
return -1;
@@ -233,7 +243,9 @@ int virBitmapSetBitExpand(virBitmapPtr bitmap, size_t b)
*
* Returns 0 on if bit is successfully clear, -1 on error.
*/
-int virBitmapClearBit(virBitmapPtr bitmap, size_t b)
+int
+virBitmapClearBit(virBitmapPtr bitmap,
+ size_t b)
{
if (bitmap->nbits <= b)
return -1;
@@ -253,7 +265,9 @@ int virBitmapClearBit(virBitmapPtr bitmap, size_t b)
*
* Returns 0 on if bit is successfully cleared, -1 on error.
*/
-int virBitmapClearBitExpand(virBitmapPtr bitmap, size_t b)
+int
+virBitmapClearBitExpand(virBitmapPtr bitmap,
+ size_t b)
{
if (bitmap->nbits <= b) {
if (virBitmapExpand(bitmap, b) < 0)
@@ -267,11 +281,13 @@ int virBitmapClearBitExpand(virBitmapPtr bitmap, size_t b)
/* Helper function. caller must ensure b < bitmap->nbits */
-static bool virBitmapIsSet(virBitmapPtr bitmap, size_t b)
+static bool
+virBitmapIsSet(virBitmapPtr bitmap, size_t b)
{
return !!(bitmap->map[VIR_BITMAP_UNIT_OFFSET(b)] & VIR_BITMAP_BIT(b));
}
+
/**
* virBitmapIsBitSet:
* @bitmap: Pointer to bitmap
@@ -282,7 +298,9 @@ static bool virBitmapIsSet(virBitmapPtr bitmap, size_t b)
* If @b is in the range of @bitmap, returns the value of the bit.
* Otherwise false is returned.
*/
-bool virBitmapIsBitSet(virBitmapPtr bitmap, size_t b)
+bool
+virBitmapIsBitSet(virBitmapPtr bitmap,
+ size_t b)
{
if (bitmap->nbits <= b)
return false;
@@ -290,6 +308,7 @@ bool virBitmapIsBitSet(virBitmapPtr bitmap, size_t b)
return virBitmapIsSet(bitmap, b);
}
+
/**
* virBitmapGetBit:
* @bitmap: Pointer to bitmap
@@ -301,7 +320,10 @@ bool virBitmapIsBitSet(virBitmapPtr bitmap, size_t b)
* On success, @result will contain the setting of @b and 0 is
* returned. On failure, -1 is returned and @result is unchanged.
*/
-int virBitmapGetBit(virBitmapPtr bitmap, size_t b, bool *result)
+int
+virBitmapGetBit(virBitmapPtr bitmap,
+ size_t b,
+ bool *result)
{
if (bitmap->nbits <= b)
return -1;
@@ -310,6 +332,7 @@ int virBitmapGetBit(virBitmapPtr bitmap, size_t b, bool *result)
return 0;
}
+
/**
* virBitmapToString:
* @bitmap: Pointer to bitmap
@@ -367,6 +390,7 @@ virBitmapToString(virBitmapPtr bitmap,
return ret;
}
+
/**
* virBitmapFormat:
* @bitmap: the bitmap
@@ -381,7 +405,8 @@ virBitmapToString(virBitmapPtr bitmap,
* Returns the string on success or NULL otherwise. Caller should call
* VIR_FREE to free the string.
*/
-char *virBitmapFormat(virBitmapPtr bitmap)
+char *
+virBitmapFormat(virBitmapPtr bitmap)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
bool first = true;
@@ -426,6 +451,7 @@ char *virBitmapFormat(virBitmapPtr bitmap)
return virBufferContentAndReset(&buf);
}
+
/**
* virBitmapParseSeparator:
* @str: points to a string representing a human-readable bitmap
@@ -546,6 +572,7 @@ virBitmapParseSeparator(const char *str,
return -1;
}
+
/**
* virBitmapParse:
* @str: points to a string representing a human-readable bitmap
@@ -569,6 +596,7 @@ virBitmapParse(const char *str,
return virBitmapParseSeparator(str, '\0', bitmap, bitmapSize);
}
+
/**
* virBitmapParseUnlimited:
* @str: points to a string representing a human-readable bitmap
@@ -679,6 +707,7 @@ virBitmapParseUnlimited(const char *str)
return NULL;
}
+
/**
* virBitmapNewCopy:
* @src: the source bitmap.
@@ -688,7 +717,8 @@ virBitmapParseUnlimited(const char *str)
* returns the copied bitmap on success, or NULL otherwise. Caller
* should call virBitmapFree to free the returned bitmap.
*/
-virBitmapPtr virBitmapNewCopy(virBitmapPtr src)
+virBitmapPtr
+virBitmapNewCopy(virBitmapPtr src)
{
virBitmapPtr dst;
@@ -703,6 +733,7 @@ virBitmapPtr virBitmapNewCopy(virBitmapPtr src)
return dst;
}
+
/**
* virBitmapNewData:
* @data: the data
@@ -714,7 +745,9 @@ virBitmapPtr virBitmapNewCopy(virBitmapPtr src)
* Returns a pointer to the allocated bitmap or NULL if
* memory cannot be allocated.
*/
-virBitmapPtr virBitmapNewData(const void *data, int len)
+virBitmapPtr
+virBitmapNewData(const void *data,
+ int len)
{
virBitmapPtr bitmap;
size_t i, j;
@@ -738,6 +771,7 @@ virBitmapPtr virBitmapNewData(const void *data, int len)
return bitmap;
}
+
/**
* virBitmapToData:
* @data: the data
@@ -749,7 +783,10 @@ virBitmapPtr virBitmapNewData(const void *data, int len)
*
* Returns 0 on success, -1 otherwise.
*/
-int virBitmapToData(virBitmapPtr bitmap, unsigned char **data, int *dataLen)
+int
+virBitmapToData(virBitmapPtr bitmap,
+ unsigned char **data,
+ int *dataLen)
{
ssize_t len;
@@ -768,6 +805,7 @@ int virBitmapToData(virBitmapPtr bitmap, unsigned char **data, int *dataLen)
return 0;
}
+
/**
* virBitmapToDataBuf:
* @bytes: pointer to memory to fill
@@ -777,9 +815,10 @@ int virBitmapToData(virBitmapPtr bitmap, unsigned char **data, int *dataLen)
* Data consists of sequential bytes, with lower bytes containing
* lower bits.
*/
-void virBitmapToDataBuf(virBitmapPtr bitmap,
- unsigned char *bytes,
- size_t len)
+void
+virBitmapToDataBuf(virBitmapPtr bitmap,
+ unsigned char *bytes,
+ size_t len)
{
unsigned long *l;
size_t i, j;
@@ -797,6 +836,7 @@ void virBitmapToDataBuf(virBitmapPtr bitmap,
}
}
+
/**
* virBitmapEqual:
* @b1: bitmap 1
@@ -807,7 +847,9 @@ void virBitmapToDataBuf(virBitmapPtr bitmap,
* Returns true if two bitmaps have exactly the same set of bits set,
* otherwise false.
*/
-bool virBitmapEqual(virBitmapPtr b1, virBitmapPtr b2)
+bool
+virBitmapEqual(virBitmapPtr b1,
+ virBitmapPtr b2)
{
virBitmapPtr tmp;
size_t i;
@@ -839,11 +881,14 @@ bool virBitmapEqual(virBitmapPtr b1, virBitmapPtr b2)
return true;
}
-size_t virBitmapSize(virBitmapPtr bitmap)
+
+size_t
+virBitmapSize(virBitmapPtr bitmap)
{
return bitmap->nbits;
}
+
/**
* virBitmapSetAll:
* @bitmap: the bitmap
@@ -863,25 +908,29 @@ void virBitmapSetAll(virBitmapPtr bitmap)
-1UL >> (VIR_BITMAP_BITS_PER_UNIT - tail);
}
+
/**
* virBitmapClearAll:
* @bitmap: the bitmap
*
* clear all bits in @bitmap.
*/
-void virBitmapClearAll(virBitmapPtr bitmap)
+void
+virBitmapClearAll(virBitmapPtr bitmap)
{
memset(bitmap->map, 0,
bitmap->map_len * (VIR_BITMAP_BITS_PER_UNIT / CHAR_BIT));
}
+
/**
* virBitmapIsAllSet:
* @bitmap: the bitmap to check
*
* check if all bits in @bitmap are set.
*/
-bool virBitmapIsAllSet(virBitmapPtr bitmap)
+bool
+virBitmapIsAllSet(virBitmapPtr bitmap)
{
size_t i;
int unusedBits;
@@ -906,13 +955,15 @@ bool virBitmapIsAllSet(virBitmapPtr bitmap)
return true;
}
+
/**
* virBitmapIsAllClear:
* @bitmap: the bitmap to check
*
* check if all bits in @bitmap are clear
*/
-bool virBitmapIsAllClear(virBitmapPtr bitmap)
+bool
+virBitmapIsAllClear(virBitmapPtr bitmap)
{
size_t i;
@@ -923,6 +974,7 @@ bool virBitmapIsAllClear(virBitmapPtr bitmap)
return true;
}
+
/**
* virBitmapNextSetBit:
* @bitmap: the bitmap
@@ -935,7 +987,8 @@ bool virBitmapIsAllClear(virBitmapPtr bitmap)
* Returns the position of the found bit, or -1 if no bit found.
*/
ssize_t
-virBitmapNextSetBit(virBitmapPtr bitmap, ssize_t pos)
+virBitmapNextSetBit(virBitmapPtr bitmap,
+ ssize_t pos)
{
size_t nl;
size_t nb;
@@ -963,6 +1016,7 @@ virBitmapNextSetBit(virBitmapPtr bitmap, ssize_t pos)
return ffsl(bits) - 1 + nl * VIR_BITMAP_BITS_PER_UNIT;
}
+
/**
* virBitmapLastSetBit:
* @bitmap: the bitmap
@@ -1012,6 +1066,7 @@ virBitmapLastSetBit(virBitmapPtr bitmap)
return -1;
}
+
/**
* virBitmapNextClearBit:
* @bitmap: the bitmap
@@ -1024,7 +1079,8 @@ virBitmapLastSetBit(virBitmapPtr bitmap)
* Returns the position of the found bit, or -1 if no bit found.
*/
ssize_t
-virBitmapNextClearBit(virBitmapPtr bitmap, ssize_t pos)
+virBitmapNextClearBit(virBitmapPtr bitmap,
+ ssize_t pos)
{
size_t nl;
size_t nb;
@@ -1059,6 +1115,7 @@ virBitmapNextClearBit(virBitmapPtr bitmap, ssize_t pos)
return ffsl(bits) - 1 + nl * VIR_BITMAP_BITS_PER_UNIT;
}
+
/* Return the number of bits currently set in the map. */
size_t
virBitmapCountBits(virBitmapPtr bitmap)
@@ -1134,6 +1191,7 @@ virBitmapDataFormat(const void *data,
return ret;
}
+
bool
virBitmapOverlaps(virBitmapPtr b1,
virBitmapPtr b2)
@@ -1154,6 +1212,7 @@ virBitmapOverlaps(virBitmapPtr b1,
return false;
}
+
/**
* virBitmapIntersect:
* @a: bitmap, modified to contain result
--
2.15.0
--
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